package com.atguigu.gmall.mq.receiver;

import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.BindingBuilder;
import org.springframework.amqp.core.CustomExchange;
import org.springframework.amqp.core.Queue;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.retry.annotation.Backoff;

import java.util.HashMap;

/**
 * 延迟队列插件
 */
@Configuration
public class DelayedMqConfig {

    public static final String exchange_delay = "exchange.delay";
    public static final String routing_delay = "routing.delay";
    public static final String queue_delay_1 = "queue.delay.1";


    //队列
    @Bean
    public Queue delayQueue1(){
        //第一个参数是创建的queue的名字，第二个参数是是否支持持久化
        return new Queue(queue_delay_1,true);
    }

    //交换机
    @Bean
    public CustomExchange delayExchange(){
        HashMap<String, Object> map = new HashMap<>();
        map.put("x-delayed-type","direct");
        return new CustomExchange(exchange_delay,"x-delayed-message",true,false,map);
    }

    //绑定
    @Bean
    public Binding  delayBinding1(){
        return BindingBuilder.bind(delayQueue1()).to(delayExchange()).with(routing_delay).noargs();
    }
}
